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为明确不同基因型烤烟理化指标的差异及其对感官质量潜在的影响,采用大田试验分析了不同品种初烤烟叶的主要理化特征和感官质量指标,以及烤烟品种间理化特征的差异及其与外观和评吸质量的关系。结果表明:1烟叶理化指标中的钾氯比、两糖比、单叶质量和含梗率在参比品种间存在差异,云烟100表现出钾氯比和含梗率较高的特点,红花大金元表现出两糖比值较高、单叶质量较低的特点;2品种间烟叶外观质量的差异与物理特性指标(尤其叶面密度)关系密切,评吸质量的差异则与化学成分指标的关系更为密切;3建立了基于钾氯比、氮碱比、烟碱、两糖比、淀粉和单叶质量6项理化指标的烟叶评吸综合质量预测模型(决定系数为0.930),在进一步试验验证基础上,可在烤烟品种评价及烟叶质量评价中应用。
In order to clarify the difference of physical and chemical indexes and their potential impact on sensory quality of different genotypes of flue-cured tobacco, the main physical and chemical characteristics and sensory quality indexes of different varieties of flue-cured tobacco leaves were analyzed by field experiments, and the difference of physicochemical characteristics and appearance And the quality of the relationship between smoking. The results showed as follows: (1) There were differences among the reference cultivars in the physical and chemical indexes of tobacco leaves, such as potassium-chlorine ratio, ratio of two sugars, single leaf mass and stem-bearing ratio. Yunyan 100 showed the characteristics of higher potassium- Daijin-yuan showed higher ratio of two sugars and lower single leaf quality. The difference in appearance quality of two varieties was closely related to the physical characteristics index (especially the leaf surface density), and the difference of smoking quality was related to the chemical composition index (3) A comprehensive predictive model of tobacco leaf smoking quality based on six physical and chemical indexes (potassium-chlorine ratio, ratio of nicotine to base, nicotine, two sugar, starch and single leaf) Based on further experimental verification, it can be applied in the evaluation of tobacco varieties and tobacco quality evaluation.